} else if (Files.isRegularFile(path)) {
                    topDirectory = path.getParent();
                    if (!Files.isDirectory(topDirectory)) {
                        throw new IllegalArgumentException("Directory " + topDirectory
                                + " extracted from the -f/--file command-line argument " + arg + " does not exist");
                    }
                } else {

                Path current = currentPom.toPath().toAbsolutePath().normalize();
                Path topDirectory = session.getTopDirectory();
                if (topDirectory != null && current.startsWith(topDirectory)) {
                    current = topDirectory.relativize(current);
                }
                logger.info("  from " + current);
            }

        return this;
    }

    @Override
    public Path getTopDirectory() {
        return topDirectory;
    }

    @Override
    public MavenExecutionRequest setTopDirectory(Path topDirectory) {
        this.topDirectory = topDirectory;
        return this;
    }

    @Override

                Path current = currentPom.toPath().toAbsolutePath().normalize();
                Path topDirectory = session.getTopDirectory();
                if (topDirectory != null && current.startsWith(topDirectory)) {
                    current = topDirectory.relativize(current);
                }
                logger.info("  from " + current);
            }

    @Deprecated
    File getMultiModuleProjectDirectory();

    /**
     * Sets the top directory of the project.
     *
     * @since 4.0.0
     */
    MavenExecutionRequest setTopDirectory(Path topDirectory);

    /**
     * Gets the directory of the topmost project being built, usually the current directory or the
     * directory pointed at by the {@code -f/--file} command line argument.
     *
     * @since 4.0.0

            // maven requires this to be set; so default it (and see below at POM)
            request.setMultiModuleProjectDirectory(
                    context.invokerRequest.topDirectory().toFile());
            request.setRootDirectory(context.invokerRequest.topDirectory());
        }

        request.setToolchains(
                Optional.ofNullable(context.effectiveToolchains).map(PersistedToolchains::getToolchains).stream()

        request.setInteractiveMode(context.interactive);
        request.setShowErrors(context.options().showErrors().orElse(false));
        request.setBaseDirectory(context.invokerRequest.topDirectory().toFile());
        request.setSystemProperties(toProperties(context.protoSession.getSystemProperties()));
        request.setUserProperties(toProperties(context.protoSession.getUserProperties()));